DE2029985A1 - Carrying device for loads - Google Patents

Description

DR.IN ·. DIP ₁ -INa-MfC. DIPL..PH / β. t, R. HÖGER - LEGAL RIGHTS - GRIESSBACH - HAECKER PATENT LAWYERS IN STUTTGART 2029985

A 38 148 m

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June 15, 1970

American Chain & Cable Company, Ine, 929 Connecticut Avenue
Bridgeport, Connecticut, USA

Carrying device for loads

The invention relates to a support device for loads, with a load rope, at one end of which a locking ring is provided is, and with a load bracket on which a hook is arranged for the detachable "mounting of the locking ring.

There are different types of lifting ropes kits known with which beams, pipes, boards and ancere Materials transported either individually or in large quantities will. Loads of this type are usually in

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held by a loop formed by means of a rope or a chain. The rope or chain has one relatively large locking ring which is detachably arranged on a hook. The hook itself is suspended from a hoist rope. Typical of these known carrying devices is, äa3 the end of the rope is equipped with a locking ring, by means of which it is attached to the hook in a detachable or detachable manner. After releasing the locking ring, the transported load falls down and the load rope can, as it is with its other end is attached to the hoist rope, be pulled upwards. Alternatively, both ends of the load rope can of course also be used Locking rings or other locking devices can be connected, which are then also releasably arranged on the conveyor hook.

To release the load after the lifting movement has ended, the known carrying devices are equipped with a release mechanism which enables the locking ring and the carrying rope to be released from the conveyor hook. For example, in one known construction, the release mechanism is operated manually. This release mechanism has a haul-off rope which is attached to the load rope in the vicinity of the hoisting hook. »By pulling on the haul-off rope, the end of the rope carrying the locking ring is removed from the hoisting hook, releasing the load. The disadvantage of this known construction is that the operator operating the pull-off or release rope must stand in the area of the release or release point of the load held by the suspension rope. The loads typically to be transported are

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usually very heavy and are often, as for example with beams, transported in large numbers at once, so that they are uncontrolled after their release from the suspension cable Way to fall down. This creates the risk that the The operator standing in the area where the load falls is injured.

In other known constructions of the type mentioned the secured end of the suspension rope releases automatically when the load hits the ground or the conveyor hook itself hits the ground after the Lasx is already on the ground lies. With these devices is the area of the point at which the load is released from the suspension rope, no operator is required. Own these devices but due to their automatic triggering several disadvantages. For example, there is a risk that the load will be discharged prematurely is released, and then when your the conveyor hook hits / hits objects in the transport area ». This can happen when the load is moving from one place to another is transported or when lowered to its storage place. Furthermore, these automatic chores tend to Clamp and then unlock, so also in this case an operator is required. Also sivdiesen malfunctioning devices can be caused by the unexpected Detaching the load from the suspension cable can easily injure the operator. .

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June 15, 1970

In order to largely eliminate these risks with the known devices, trigger mechanisms have already been proposed, which are electronically controlled by a remote operator. The release mechanisms built for this purpose however, are of a very complicated structure and have, for example, electromagnets, solenoids, springs or combinations of this, so that it is very expensive to manufacture and continuous maintenance is still required.

It is the object of the present invention to avoid the mentioned shortcomings of the known support devices and a To propose device that is relatively simple and safe and, moreover, without any risk for a Operator can be operated.

According to the invention, the hook provided on the carrying device with which the loads to be transported are removed from the site are moved to site, structurally improved, wherein a release device is provided which can be actuated from a remote control station to thereby the transported To be able to deposit the load at the desired location.

The support device according to the invention has a load bracket, on which two load ropes, which each form a loop for receiving the load to be transported, are provided. Each rope carries a locking ring at one end, which is attached to the hook. Each hook has one with the load bracket connected holding part and furthermore has a pair of recessed bearing surfaces, which for receiving the with the

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Lock ring provided load rope end that have a pocket perm. The bearing surfaces are arranged at such a distance from one another that the load rope can be passed through can.

In order to be able to release the load from the load rope, a remote-controlled release device is provided which is attached to a "carrier is attached. The locking ring is lifted out of the pocket formed by the support surfaces by the release device, see above that the transported load is detached or released. The release device also has a lifting element through which the secured rope end equipped with the locking ring is lifted into a position above the pocket. Furthermore, an ejector is provided through which the Then move the end of the rope with the locking ring to the side from this position is pressed.

Furthermore, precautions have been taken to prevent this is that the locking ring, even before the trigger has been actuated, can get out of its pocket. To this Purpose is a locking lug on the tether is provided, which is between a first position in the path of the upwards moving locking ring and a second position moved outside this trajectory. *

The release mechanism is actuated by a drive mechanism, which is arranged on the load bracket. The drive mechanism can be specific, remote from one

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June 15, 1970

arranged transmitter pick up the outgoing point signal, through
which the drive mechanism is put into action.
The drive mechanism is connected to the lifting element of the release device via a control cable, so that after a
Actuation of the drive mechanism by tightening the control cable, the lifting element is raised in the direction of the holding part. The control cable is connected to the lifting element by means of a connecting part having a dead gear.
This connecting part has a trigger by means of which the locking lug is removed from the path of movement of the locking ring before the locking ring is raised by the lifting element.

According to the invention it is not possible to use the locking ring of the
To release the load rope before a control signal has reached the drive mechanism by which the release device is actuated. An important advantage here is that the load to be transported is not released from the load rope when it is lowered to the desired storage location. Furthermore, the load is also not released by the load rope looping around it if, for example, the load bracket, the holding part or the like is present in the effective area of the carrying device
Come into contact with objects. Furthermore, as already mentioned, no operator is required in the danger area of the carrying device. Rather, the burden is caused by a
remote operator released from the load rope.

A 38 148 m
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June 15, 1970

The following description of a preferred embodiment of the invention serves in connection with the enclosed Drawing for further explanation. Show it"

Pig. 1 a front view of a carrying device according to the invention}

Pig. Figure 2 is a side view of the Pig carrying device. 1;

Pig. Figure 3 is a side view of the hook of the support device according to the invention;

Pig. 4- "6 the hook from Fig. 3 in different working positions and

Pig. Figure 7 is an overall view, partially in section, of the drive mechanism.

Like from Pig. 1 and 2 can be seen, has the inventive. moderate support device a load bracket 1, at the ends of which the two end parts of a load rope 2 are arranged. As continued from Pig. 1, the load bracket 1 has an opening V ¹ through which it can be connected to a hoist rope. '

One end of each load rope is always with one Fastening member 3 connected, which in turn by means of a Connecting part 4 rotatably arranged on the load bracket 1

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is. Like from Pig. 2, the fastening element 3 can be seen by means of a support bolt 5 at one end of the connecting part 4 articulated, while the other end of the connecting part 4 is also articulated by a second support bolt 6 is connected to the load bracket 1. The longitudinal axes the support bolts 5 and 6 are, as from Pig. 1 and 2 can be seen, · at right angles to each other. The end sections of the Support bolts 6 are carried by retaining plates 7 and 8, which in turn form part of the load bar 1.

The other end of each load rope 2 is detachably attached to the load bracket 1 by means of a hook 9. This end of the Load rope 2 is equipped with an enlarged sterring '10, which is arranged in a pocket provided in the hook 9. Like the Pig. 2 and 3 show the holding part 11 has a pair of recessed bearing surfaces 12 which are arranged at such a distance from one another that there is between them Load rope 2 can be passed through.

The locking ring 10 is removed from its rest position in the pocket when the attached to the other end of the load rope Load should be shed / For this purpose one is optional Triggering device to be operated for: Lifting the locking ring 10 out of its pocket. This release device has a Hubelecent 13, through which the Srerring is moved up into a position above the pocket, as well an ejector 14, by means of which the locking ring 10 is pressed from its upper end position to the side.

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The Mn and reciprocating with respect to the holding part 11 Lifting element 13 is in a bearing recess provided in the holding part 11 15 arranged. The lifting element 13 has a locking ring 10 actuating engagement surface 16, which on the Attacks the underside of the locking ring and pushes it upwards out of the pocket.

The ejector 14 is carried and moved by a bolt 17 in a plane which runs parallel to the lifting element 13. In the present embodiment, the ejector has a first lever arm 18, which with the locking ring 10 at a pivoting of the ejector 14 comes into contact, as well as a second arm 19 »which forms a certain angle with the arm 18 and moves with respect to the direction of movement of the lifting element 13 extends transversely to this. An actuating element is attached to the lifting element 13 by which the ejector 14 'after the locking ring 10 has been brought into the position above the pocket, pivoted will. A protruding bolt 20, which is connected to the second arm 19 of the ejector 14 in FIG Comes into contact and thereby pivots the ejector 14 during the upward movement of the lifting element 13. The lifting element 13 carries a second bolt 21, which with the downward movement of the lifting element 13 one end face of the arm 19 elongated in contact, so that thereby the ejector 14 is pivoted back into its starting position after the locking ring 10 from its upper End position has been pushed to the side.

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June 15, 1970

In order to prevent unintentional displacement of the locking ring 10 out of the pocket, a locking element in the form of a locking lug 22 is attached to the holding part 11. The locking lug 22 moves from a first position in the upward movement path of the locking ring 10 into a second position which is outside the movement cahn. In order to enable this movement of the locking lug 22 between its two end positions, a bolt 23 carrying the locking lug 22 is provided which protrudes from the holding part 11.

In order to be able to move the lifting element 13 in relation to the holding part 11, a control cable 24n is arranged on the first one by means of a connecting part 25 which has a dead gear. The connecting part 25 has a trigger with which the locking lug 22 is moved out of the path of movement of the locking ring, namely before the lifting of the lifting element 13. The connecting part 25 is arranged in the upper region of the Eubeleaentes 13 near the locking lug 22 and has a longitudinal slide 25 '»in which a connecting bolt 26 moves - which in turn is arranged by means of an end piece 21 aa control cable . The bolt 26 serves as a trigger for the locking lug 22. When the lifting element 13 is in its in Pig. 3 is the lower position shown, the bolt 26 sits at the lower end of the longitudinal slot 25 * , in which case the beveled surface of the bast nose 22 rests on the bolt 2 $. In this position a clockwise rotation of the locking lug 22 is prevented, so that premature escape of the locking ring 10 from its receiving pocket is prevented.

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June 15, 1970

In operation of the device according to the invention, the control ax 24 withdrawn upwards, so that thereby the bolt 26 in the longitudinal slot 25 'also moves upwards and the Latch 22 counterclockwise into that shown in FIG Pivoted position * When the Control rope 24 comes the bolt 26 in connection with the! upper end of the longitudinal slot 25 '»so that the Hubeleaent 13 is in the bearing recess 15 of the holding part 11 upwards emotional. This movement of the Hubeleaentes 13 causes upwards, that its attack surface 16 with the underside of the locking ring 10 comes into contact and lifts the locking ring 10 out of its pocket. When the locking ring 10 is raised into the position shown in FIG. 5 above the pocket, the bolt 20 arrives with the arm 19 of the ejector 14 in contact and "apply, that the arm 18 is anti-clockwise un the bolt 17 pivoted. As a result, the Arn 16 comes into operative connection ait the locking ring 10 and pushes it out of its upper Pcsiticr. to the side, as shown in FIG.

In this way, provided with the locking rings 10 ¹ ends of two load ropes 2 fall out of the pocket, whereby the VCN the load ropes 2 transported load is released! Iachden. the load is released, the load ropes 2 can be retrieved by simply pulling the carrying device away from the storage location of the transported, now released conveyed goods. The other ends of the load ropes 2 are therefore always connected to the carrying device via the fastening members 3, so that the load ropes are never completely detached from this device.

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After releasing the load and retrieving the loose ends of the load ropes 2, the transport device according to the invention is again ready for a new load transport. After this the ropes are wrapped around the load to be transported, the rope ends provided with the locking rings 10 become inserted into the pockets of the hook 9. The lifting element 13, is in its lower position in the bearing recess 15. During the downward movement ″ of the lifting element 13, the bolt 21 comes into operative connection with one end portion of the arm 19, so that the ejector 14 is thereby pivoted back into its starting position. Simultaneously with this downward movement of the lifting element 13, the bolt 26 is also disconnected from the wire with the locking lug 22, so that this either due to the Swings back into its original locking position by gravity or by the action of a spring.

To control the release device on the hook 9 is a remote control Drive mechanism 29 is provided (Pig. 1). This drive mechanism is the on the lifting elements 13 of the t release device attached control ropes 24 given a reciprocating movement. Like from Pig. 1 can be seen the drive mechanism of 29 between two plates 30 on the load bracket 1 attached. The remote control of the drive mechanism V 29 takes place via a point signal, for this purpose the Drive mechanism is housed in a housing 31 permitting electromagnetic point signals.

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In Pig. 7 shows the structural design of the drive mechanism ¹ 29 accommodated in the housing 31. The drive mechanism 29 has two ball screw spindles through which each of the control cables 24 is given a longitudinal movement at the same time. A power supply unit 32 with rechargeable batteries, for example silver-cadmium cells, is used to supply power to a motor 33. A receiver 34 and an antenna 35 are also provided to operate the power supply unit 32. The receiver 34 is of conventional design and has a high degree of selectivity for the control signals and can receive them from a remote transmission point.

The drive motor 33 is a DC perinanent magnet - motor and is connected to the ball screw spindles 37 and 38 via pairs of gears 36. By the motor 33 'switched on based on a punk signal received from the receiver 34 the reciprocal movement of the control cables connected to them takes place via the ball screw spindles 37, 33 24. For final control of the longitudinal movement of the ball screw spindles 37, 38 switches 39 are also provided.

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Claims (6)

A 38 148 m ο - fl June 15, 1970 Claims ; 1 / support device for loads, with a load cable, to the ^v one end, a locking ring is provided., Wad with a clevis to which a serving for mounting of the detachable locking ring hook is arranged, characterized in that the hook (9) Holding part (11) has ₍ on which bearing surfaces (12) are provided to form a pocket which accommodate the locking ring (10) arranged on the load rope (2) passed through between the bearing surfaces (12), that there is also a release device on the holding part (11) (13f H) for lifting and releasing the locking ring (10) from the ssiner pocket and a locking device (22) is arranged which, when the release device (I3f 14) is actuated, moves from a first position ₉ in the movement path of the locking ring (10) moved into a second position located outside of this path of movement. 2. Carrying device according to claim 1, characterized in that the triggering device has a Hubeleiaeeit (13) for raising and an ejector (14) for lateral displacement of the Has locking ring (10). 00S8837U7S A 38 U8 m
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June 15, 1970 3. Carrying device according to claim 1 or 2, characterized in that that on the lifting element (13) a bolt (20) is provided, which by means of a first arm (19) the ejector (14) pivoted so that the locking ring (10) by means of a second arm (18) from its above the Pocket provided position is pressed to the side. 4 «carrying device according to claim 1, 2 or 3, characterized in that that on the Hubelenent (13) a connecting part (25) is attached to which a lifting element (13) in relation on the holding part (11) moving control cable (24) engages and that a trigger (26) on the connecting part (25) is arranged for pivoting a on the holding part (11) provided locking lug (22) from a first position, in which the locking ring (10) lying in the pocket is prevented from moving into a second position releasing the path of movement of the locking ring (10). 5. Carrying device according to one of the preceding claims, characterized, aaS aia load bracket (1) a the Hubeleinent (13) is provided by means of the control cable (24) actuating drive mechanism (29). * ■ 6. Carrying device according to one of the preceding claims, characterized in that & a3 the actuation of the drive mechanism ¹ (29) takes place by remote control. 0Ö9883 / U7.S